The behavior is terrible, and potentially-to-rightly career ending, regardless of whether it is a republican or democrat.
Having said that, there is some pretty big contrast between the responses. Franken’s side is a mixture of self-reflection/apology and occasional support (SNL, for example) while admitting wrongdoing. Republicans on the other hand have dug in their heels in support for Moore by denying the accusations, supporting him anyways because he’s not a democrat, and even supporting his actions as being Biblically acceptable. These latter two are particularly disgusting.